An Empirical Study on the Relationship between Diversification and Economic Performance of Listed Corporations of China

It is crucial for corporations to select a proper development mode in competitive market. Diversification has been one of the most popular development modes that corporations all over the world pursued since 1960's. The relationship between diversification and economic performance is also an important subject for the research in strategic management. This paper re-examines the economic performance of China listed corporations and designs the measure index system of diversification strategy and economic performance. Moreover, it adopts empirical study on the relationship between them through the approaches such as regression model, variance analysis. It attempts to seek for the diversification development mode fit for China corporations so as to enhance economic performance.     

Dynamic Analysis on Adjustment of Price for Disequilibrium Market

Under the condition of market economy, the price of goods changes with internal rule and relation of supply and demand in the micro-market. Because of complexity of real economic system, the fact that supply is not all equal to demand every time needs use the disequilibirium analysis which nears well reality instead of traditional equilibirium analysis. In the state of disequilibirium market, according to the adjustment function for market and under synthesizing two basic adjustment equations of price, the stability of price for disequilibrium system has been studied based on the equations of supply and demand and using the adaptive expectation mode to forecast price .These conditions of stability of the system have also been given, which benefit to study structure and capability so as to search for dynamic law for the economic system .     

上海市水产品消费需求的双对数模型分析

为了研究上海市水产品消费需求的影响因素以及不同因素贡献度的大小,以上海市1999—2010年城市居民家庭人均水产品消费量、城市化水平、水产品价格指数、替代品价格指数、居民消费价格指数、居民家庭人均可支配收入等相关数据作为研究对象,采用Eviews软件对上海市水产品消费需求进行回归分析。建立了包括城市居民家庭人均可支配收入、居民消费价格指数、总人口数这些影响因素在内的上海市水产品消费需求模型。另外,通过建立关于城市居民家庭人均可支配收入、居民价格指数、总人口数的模型,对这些影响因素进行预测,从而可以对上海市水产品消费进行预测。最终认为,要增加上海市水产品的消费需求,必须从提高家庭人均可支配收入、控制居民消费价格指数、发展水产品深加工业、加强物流体系建设以及加强水产品市场质量管理等方面入手,推动上海水产业持续稳定的发展。     

基于因子分析方法的农业产业化经营现状评价――以北京郊区为例

农业产业化是现代农业发展的基本方向和市场农业的基本经营方式。笔者构建了农业产业化经营评价指标体系,并利用多元统计分析中的因子分析方法,对北京市13个郊区县的农业产业化经营现状进行了系统评价,为其他省市提供经验借鉴。研究表明,北京郊区农业产业化整体水平显著提高,但各区县间发展存在较大的不均衡性。个别郊区县农业产业化发展较薄弱,需从壮大农业龙头企业、培育农民合作组织、完善产业化利益联结机制等角度提升农业产业化发展水平。     

Characteristics of energy consumption and energy efficient approaches for hotel buildings

Based on the investigation of energy consumption and air conditioning system working of 14 typical hotel buildings in Three Gorges Reservoir area cities, energy consumption characteristics of hotel buildings are analyzed. Then the use status of energy efficiency technologies of those hotel buildings is analyzed. Finally, effective energy conservation approaches for hotel buildings are brought forward and the energy-efficiency potential of variable water volume system is analyzed through testing.     

Strategies of Foreign Market Entry on the Basis of Strategic Alliance

By analyzing the achievements the TTX company and QI company gained on the basis of strategic alliance, this paper proves that strategic alliance is an effective mode of foreign market entry by Chinese enterprises, especially, private, small and medium enterprises, and they can actually promote their competence and acquire profit upon restricted resources by making an alliance with partners. This paper also discusses the problems exist in the alliance and the threat TTX faces, and put forward effective countermeasures.     

江苏淮南地区弱筋小麦生产的现状、优势和发展策略

介绍了江苏淮南地区小麦生产情况和品质现状,并根据弱筋小麦的生产要求和市场需求,分析了该地区发展弱筋小麦具有独特的自然资源以及品种、栽培技术、区位交通、产业化开发等方面的优势条件,并初步探讨了弱筋小麦生产的发展策略。     

Reducing the Heating and Cooling Energy Consumption of Buildings

Abstract:This research aims at proposing measures to enhance the energy efficiency of buildings in the city of Guiyang. A computer simulation study was conducted on the basis of a building model using the DeST software package. The indoor temperature and year round heating and cooling loads were simulated. From analysis of the simulation results and taking into account the climate of Guiyang, three measures for energy efficient buildings in Guiyang are proposed. 1) Heating is a greater priority than cooling in comfortable air conditioning system design; 2) Natural ventilation should be given priority in cooling design and adjustment during seasonal transition is important to reducing energy consumption in building cooling; 3) Insulating the building envelope and lowering the glazing ratio of walls are critical for reducing energy consumption in heating buildings. Our conclusions will be useful for guiding energy efficient building design not only in Guiyang but also in mild climatic areas of P. R. China.     

Microcomputer Network Management Information System for Construction Engineering Invite and Bidding

To assure that inviting and bidding are accomplished legally, normally and orderly in the construction engineering, a tangible market came into being by means of novel technologies, such as computers, networks and information managing so that exoteric, fair and equitable principles are embodied during inviting and bidding in the construction engineering. A framework model of the information managing system for inviting and bidding is proposed, which owns common functions and can be applied to usual construction engineering bargaining. Functions and characteristics of the computer network management system, which was developed and applied on the basis of the framework model, for construction engineering inviting and bidding information are demonstrated. In addition, pivotal technologies of developing the system also are expatiated.Anticipated effects are gained and the system is proved to own a friendly man machine interface after running and applying near a year. Maneuverability and expansibility is competent for inviting and bidding in the tangible construction market.     

The effect of moisture content on the tendency of coal to combust spontaneously

The self heating of coal is influenced by many factors, but mainly it involves exothermic reactions between reactive sites in the coal and oxygen from the air. Moisture affects the nature of the radical sites where oxidation occurs, and affects the tendency of coal to combust spontaneously. Adiabatic tests show the coal self heating rate increases as the moisture content increases. At approximately 40% to 50% of the moisture holding capacity of the coal, the self heating rate becomes measurable. Above this critical level of moisture content, the heat produced by oxidation is dissipated by moisture evaporation and coal self heating is significantly delayed.     

Feasibility Analysis on the Integrated Application of Solar Energy,Biogas, Coal-fired Boiler and Radiant Floor Heating for Rural Residence

The feasibility of adopting a balanced energy mix mode (domestic solar energy, biogas, coal-fired boiler and radiant floor heating) was proposed. Taking a typical rural residence in Zhengzhou City for example, the study through theoretical analysis and calculation showed that such a balanced energy mix is an economic way and efficient in saving energy and reducing air pollution, and elaborated the theoretical feasibility of popularizing such a heat supply mode in rural areas.     

北京产果品供应链整合运作模式探讨

探索供应链管理思想在农产品经营实践中的应用已逐渐受到关注。本文以北京出产的果品为研究对象,基于对果品供应链所涉及生产、经营和消费等环节的相关节点主体进行的实地调研资料,结合对果业发展间接资料的系统分析,探讨了北京出产果品在市场供求对接实践中,业已存在和未来可供选择的供应链整合运作模式,其中包括“产地主导的都市农业模式”、“核心主体拉动模式”和“基于信息网络平台的节点协同模式”。同时,针对不同模式又简要讨论了各自特点及其在实践中应用的适应条件。目的是为参与北京产果品供应链管理的各方面相关主体提供管理借鉴和参考。     

云南省发展无公害蔬菜的优势及对策探讨

650223 云南省昆明市学府路云南省农业科学院农业质量标准与测试技术研究所     

雷州半岛夏季休闲耕作制度初探

为了探索适合雷州半岛推广的休耕制度,为促进当地耕作制度的改革提供理论参考,本研究分析了雷州半岛的自然环境条件、农业生产现状及其存在的问题：自然灾害严重;连作,病虫害严重;部分农作物产品上市期与其他地方同类农作物产品的上市期重叠,致使农民生产经济效益不高等。由此认为：雷州半岛具有得天独厚的热带气候资源,发展农业很有优势。但是,该地区农业生产也面临着很多限制因素,其耕作制度也存在很多问题。雷州半岛农业应以冬春季为主要生产季节,使其逐渐成为当地的农业主导季节,而在夏季则对其耕地实行休耕与培肥措施相结合,避免恶劣天气对作物生产的危害,也使农田得到休养生息、快速恢复和提升耕地生产力,推行“秋、冬种春收”的生产模式,有利于提高当地农业生产效益。     

Study on Simulation Method of Heating and Air - conditioning Energy Consumption of Residential Buildings

The heating and air conditioning energy consumption of residential buildings is influenced by the behavior of indoor living personnel.On the basis of research and analysis,two kinds of calculation modes reflecting the behavior of indoor living personnel are estimated.Under two kinds of different calculation modes,by using the building thermal environment simulation Toolkit DeST to simulate the energy consumption calculation for certain residential building in Shanghai,and the simulation results are compared with the research results.The influence of calculation mode on heating and air conditioning energy consumption of residential buildings in Shanghai is analyzed in this paper.In order to obtain the right simulation calculation method correctly reflecting the energy consumption of residential buildings.This method can be used for analysis and evaluation of heating and air conditioning energy consumption of residential buildings in Shanghai,and it can serve as instruction for right energy design of residence building.     

Thermal Performance Optimization of Solar Heating Building Envelope in Tibet of China

Solar heating system is a promising sustainable energy source for buildings. Simulation models using EnergyPlus and TRNSYS were used to optimize the solar heating building enclose thermal insulation. The sensitive analysis of active solar heating system design parameters and energy consumption was conducted to study the influence of building envelope thermal performance on the active solar heating system. The two object functions, investing cost and lift time cost, were used to optimize the building envelope insulation. The results show that not only the energy consumption can be reduced by increasing the building envelope thermal performance, but also can minimize the investing cost.     

北京家庭农场发展模式探析

(目的)家庭农场作为一种新的农业组织形式近年在国内得到大力推广,但北京家庭农场的发展还处于试点阶段,还没有形成适合的模式。(方法)通过对北京在试点过程中出现的规模没有标准、劳动力缺乏、土地使用和劳动力成本高、市场运作能力弱、融资难等问题进行分析研究,借鉴上海、台湾、美国、德国、日本等国内外家庭农场发展的成功经验,(结论)提出因地制宜、适度规模,以特色农产品为抓手进行专业化生产,政策引导、制度保障、完善农业社会服务体系,发展生态型家庭农场,市场化运作、注重创新和加强农场主培训等发展方式,从而形成适宜北京的家庭农场发展模式。     

Analyses of Annual Running Conditions for Ventilation System in Residences in Hot Summer and Cold Winter Regions

Based on the definitions of air conditioning period, dehumidifying period and heating period, this paper puts forward the exchanging conditions and psychrometric process of ventilation system in residences. Because of the remarkable humid climate in hot summer and cold winter regions, the ventilation dehumidification becomes a more important part of the air treatment system. In order to improve the indoor thermal environment quality, new strategies must be founded to control both temperature and humidity of ventilation system.     

东北严寒地区农村生活用能基线调研与零碳发展路径研究

为了探究碳中和目标愿景对中国农村能源供给体系发展带来的深远影响,本研究通过对中国东北严寒农村地区调研,总结分析了农村生活用能消费特点。结果表明：受气候条件影响,东北地区农村人均年生活用能消费达(0.99±0.40) tce,冬季采暖用能占比达(79.4±4.9)%,主要以秸秆、薪柴及煤炭资源消耗为主,建筑围护结构保温性差,低效传统炉灶仍普遍存在。针对农村地区气候特征、资源禀赋、居住方式与能源需求趋势,基于生物质及太阳能等资源利用,采用多能互补、多元化供应模式,提出了在碳中和目标愿景下,“分户式秸秆成型燃料取暖+建筑节能+分布式太阳能光伏”,以及“秸秆打捆直燃集中供暖+分布式太阳能光伏+建筑节能+分户式省柴节能炉灶”的技术应用模式,并对4个示范村节能减排能力的提升进行估算分析,预计年生活用能节能占比可达(39.7±5.1)%,碳减排量可分别提高5.7倍、66.6倍、24.1倍和15.6倍。     

提高食品分析实验课程教学质量的实践

根据高等学校教育培养技术应用型人才的主要任务,以市场需求和就业为导向,阐述了食品分析实验课在食品科学与工程专业实践教学中的作用,探讨了以提高实验教学质量为目标,进行实验教学模式和教学方法改进。实践证明,该模式有利于学生综合素质和专业实验技能的提高。